Home / 74,122.66-111,204.76-29,780.54

Finding the Fourth Proportional to 74,122.66, 111,204.76 and 29,780.54

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Solution

The fourth proportional to 74,122.66, 111,204.76 and 29,780.54 is: 44,679.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,122.66 : 111,204.76 = 29,780.54 : x
  2. Step 2: Convert to fraction form
    74,122.66/111,204.76 = 29,780.54/x
  3. Step 3: Cross multiply
    74,122.66x = 111,204.76 × 29,780.54
  4. Step 4: Simplify right side
    74,122.66x = 3,311,737,803.37
  5. Step 5: Solve for x
    x = 3,311,737,803.37/74,122.66
  6. Step 6: Final answer
    x = 44,679.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.